122 Lxxxiv. APOCYNACE/E (stapf). [^TabemantJie. 



17. TABERNANTHE, Baill. in Bull. Soc. Linn. Paris, i. 783. 



Calyx small, herbaceous, with f) small glands within, alternating 

 with the sepals ; sepals 5, almost free, imbricate, ovate, acute, rotun- 

 date, very minutely ciliolate. Corolla small, salver-shaped ; tube sub- 

 cylindric, or more or less inflated below, thin ; lobes overlapping to the 

 left, very broad, obtuse, as long as or shorter than the tube, tips not 

 inflexed in bud. Stamens inserted about the middle of the coroila- 

 tube ; anthers conniving in a cone, included, subsessile, linear-sagittate, 

 finely acuminate, wings with thin involute margins ; tails acute, foot of 

 connective narrow, flat, glabrous, slightly viscous ; filaments very short, 

 stout, hairy in front ; filamental ridges very slender. Disc 0. Ovary 

 syncarpous, imperfectly 2 -celled; style filiform; stigma capitate, 5- 

 grooved, viscous, with a short reflexed membrane at the base and a 

 slender 2-fid apiculus ; placentas parietal, much projecting, united at 

 the bottom and the top ; ovules 2-4-seriate, numerous. Fruit baccate, 

 fleshy, ovoid, acuminate. Seeds few, embedded in a scanty pulp (mem- 

 branous when dry), ellipsoid, ventrally deeply grooved ; testa very 

 thick, corky, divided by deep longitudinal and transverse grooves into 

 seriate tubercles ; endosperm ruminated by the intruding testa, fleshy ; 

 cotyledons transverse, thin, concavo-convex, about as long as the radicle. 

 — Shrubs or small trees, dichotomously branched. Leaves opposite, thin, 

 herbaceous ; axillary stipules ; axillary glands filiform, of ten numerous. 

 Flowers small, in terminal or pseudo-axillary, usually paired, lax, few- 

 flowered, corymbose or pseudo-scorpioid inflorescences. 

 Species about 5, endemic, 

 , Corolla-tube inflated and ovoid at the base. 



Leaves oblor.g-lanceolate, gradually acuminate, 



• acute at the base, distinctly petioled . . 1. T. Bocca. 



Leaves oblanceolate to subcbovate, minutely 



rounded at the base, subsessile or sessile . 2. T. subsessilis. 

 Corolla-tube suboylindrie, slightly narrowed above 

 the middle. 

 Corolla-tube 3^-4 lin. long . . . . S. T. Mannii. 



Corolla-tube 2-2h lin. long. 



Corolla wliite ; leaves with petioles up to 4 lin. 



long, acuAe or acuminate at the base . 4. T. Iboga. 



Corolla yellowish ; one leaf of each pair usually 

 sessile or subsessile and shortly rounded at 

 the base, the other stiortly petioled and 

 acute or subacute at the base . . . 5. T. tenuiflora. 



1. T. Bocca, Stapf. A glabrous shrub ; branches reddish-brown; 

 lenticels small, scattered. Leaves oblong-lanceolate, gradually long 

 acuminate, (acumen subacute, rather broad, up to J in. long), acute or 

 subacute at the base, 4-5 in. long, 1 J-l| in. broad, herbaceous, thin ; 

 secondary nerves 9-11 on each side, oblique, curved; veins faint; 

 petioles up to Ij lin. long. Inflorescences geminate from the branch- 

 forks, few- to 8-flowered, subcorymbose or subumbelliform, drooping, 



